Software Engineer II, Backend; PMI Integrations

Position: Software Engineer II, Backend (PMI Integrations)
Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.

The Partner Merchant Interfaces – Integration team within Decisions Foundations is growing and we are looking for a Software Engineer II with a track record of leading projects and initiatives on the Partner Merchant Interfaces Team. You will be part of a fast‑paced team responsible for the APIs that Partners and Merchants use to integrate with Affim, and also power some of our top partners like Amazon and Stripe.

What You'll Do

With the support of your team’s tech lead and manager, break down larger projects into individual tasks, deliver them in multiple phases, and collaborate with others to ensure timely delivery of your work.

Support peers and stakeholders in the product development lifecycle by collaborating with product management, design and analytics, participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade‑offs.

Support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” & on‑call efforts.

Contribute to a sense of community on your team by engaging in growth and development activities such as participation in the interview process.

What We Look For

1.5+ years of experience as a software engineer.

Experience designing, developing and launching backend systems and proficiency in either Python or Kotlin.

Familiarity with the building blocks of distributed systems and technologies such as AWS, MySQL and Kubernetes.

Experience designing, developing and launching APIs at scale using Python or Kotlin.

Mastery of turning a simple problem or business scenario into a solution that interacts with multiple software components, and execution by writing clear, well‑tested and extensible code.

Comfort navigating a large codebase, debugging others’ code, and providing feedback through code reviews.

Proactive ownership of growth, proactively seeking feedback from team, manager and stakeholders.

Strong verbal and written communication skills supporting effective collaboration with the global engineering team.

Equivalent practical experience or a Bachelor’s degree in a related field.

Pay Grade – L

Equity Grade – 5

Base pay range per year: $125,000 – $175,000.

Affirm is a remote‑first company; the majority of roles are remote across the U.S., with occasional office requirements.

Benefits

Health care coverage – premiums fully covered for you and your dependents.

Flexible Spending Wallets – stipends for technology, food, lifestyle and family expenses.

Time off – competitive vacation and holiday schedules allowing you to rest and recharge.

ESPP – employee stock purchase plan enabling you to buy shares of Affim at a discount.

Pursuant to the San Francisco Fair Chance Ordinance and Los Angeles Fair Chance Initiative for Hiring Ordinance, Affim will consider for employment qualified applicants with arrest and conviction records.

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